EP1219837B1 - Ventilateur à pales axiales - Google Patents

Ventilateur à pales axiales Download PDF

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Publication number
EP1219837B1
EP1219837B1 EP01125014A EP01125014A EP1219837B1 EP 1219837 B1 EP1219837 B1 EP 1219837B1 EP 01125014 A EP01125014 A EP 01125014A EP 01125014 A EP01125014 A EP 01125014A EP 1219837 B1 EP1219837 B1 EP 1219837B1
Authority
EP
European Patent Office
Prior art keywords
fan
accordance
blade
hub
blades
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01125014A
Other languages
German (de)
English (en)
Other versions
EP1219837A3 (fr
EP1219837A2 (fr
Inventor
Uwe Dipl.-Ing. Blass
Christoph Dipl.-Ing. Kurdzel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE2001100064 external-priority patent/DE10100064A1/de
Application filed by Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP1219837A2 publication Critical patent/EP1219837A2/fr
Publication of EP1219837A3 publication Critical patent/EP1219837A3/fr
Application granted granted Critical
Publication of EP1219837B1 publication Critical patent/EP1219837B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • F04D29/329—Details of the hub
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F04D29/384—Blades characterised by form

Definitions

  • the invention relates to a fan with axial blades, in particular for radiator of motor vehicles according to the preamble of claim 1.
  • a fan is e.g. from any of the details of DE-C-62510, DE-A-19710608 or GB-A-2 041 103.
  • so-called air guide elements are arranged in the region of the axial and suction side of the axial blades.
  • a so-called hub ramp is provided in the pressure-side region of the axial blade.
  • the air guide elements extend over the entire blade pitch, that is, from the leading edge of an axial blade to the leading edge of an adjacent axial blade.
  • This particular embodiment of the air guide elements as shown in FIGS. 3 and 4 of the aforementioned application, thus forms between two blades a continuous surface or the wall for a closed flow channel.
  • these closed flow channels may be disadvantageous, in particular they may lead to congestion and vortex formation, that is to flow losses.
  • the task of Invention is an avoidance of the aforementioned congestion effects due to a closed flow channel.
  • the air guide elements are designed as fin-like stabilizers, which extend in the circumferential direction only over a range of 1% to 40% of the blade pitch.
  • the air guide elements thus leave between two blades and the hub an open flow channel in which the hub flow and the blade flow are controlled.
  • the stabilizers in the blade root area cause a separation of hub and blade flow on the suction side, the blades and prevent flow separation and harmful vortex formation.
  • the circumferential extension of the stabilizers in the air flow direction increases - so that the stabilizers are adapted to the increase in thickness of the boundary layer flow or vortex formation. This applies in particular to the development according to claim 3.
  • the length of the stabilizers corresponds to the length of the axial blades, wherein the front edge of the stabilizers may be slightly offset from the blade leading edge in the flow direction.
  • the surface of the stabilizers in the radial direction is slightly curved outward, that is slightly concave. This measure also takes into account the course of the flow in the blade root area.
  • the stabilizers are arranged in a radial range of 0 to 40% of the blade height H, preferably from 0 to 20%. In this area, the hub flow and flow at the blade root can be most effectively affected.
  • the hub in its inner region on a fluid friction clutch, which has on its front side radially aligned cooling fins.
  • the latter produce a substantially radially oriented air flow, a so-called. Cooling air flow.
  • radial stabilizer elements are assigned to each stabilizer, that is called flow divider after the parent application.
  • the latter engage with their leading edge in the radially directed cooling air flow and direct this relatively low loss on the pressure side of the blades, that is in the range of the hub ramp.
  • the outer surfaces of the radial blade element and the hub ramp form a common surface, so that a favorable flow pattern is achieved in the hub area.
  • the surfaces of the stabilizer, the radial blade element and the hub ramp merge into one another, so that the blade root pressure and suction side is surrounded by a common surface, which generates a particularly low-loss flow.
  • Fig. 1 shows an axial fan 1 with eight substantially radially oriented fan blades 2, which are mounted on a hub 3.
  • This fan 1 or its hub 3 is mounted on a fluid friction clutch 4 with radially extending cooling fins 4 ', which drives the fan 1 in the direction of arrow A.
  • a fluid friction clutch 4 with radially extending cooling fins 4 ', which drives the fan 1 in the direction of arrow A.
  • In the region of the hub 3 stabilizers 5 and radial blade elements 6 are arranged.
  • FIG. 2 shows a side view of the fan 1 with a view of the blade 2 in the direction of its radial longitudinal axis.
  • This blade 2 has a leading edge or leading edge 7, a trailing or outflow edge 8 and a suction side 9 and a pressure side 10.
  • On the suction side 9 of the fin-like stabilizer 5 is arranged, which has an outer boundary line 11 and an inner boundary line 12 (at the junction with the blade 2).
  • the circumferential extension s of the stabilizer 5 increases from the inflow side (s 1 ) to the outflow side (s 2 ), ie, s 2 > s 1.
  • the length I of the stabilizer 5 substantially corresponds to the blade length L, the leading edge 13 of the stabilizer 5 relative to the blade leading edge 7 is set back slightly, while the trailing edge 14 terminates approximately flush with the trailing edge 8 of the blade.
  • the length L may be about 175 mm.
  • the radial blade element 6 is arranged in the direction of flow (ie counter to the direction of rotation A) in front of the blade leading edge 7, which was also referred to in the applicant's application DE-A-19929978 as a flow divider.
  • This radial blade element covers in the axial direction the front part of the fluid friction clutch 4, while the front edge 15 of the hub 3 is slightly set back in this area.
  • Fig. 3 shows a view of the fan 1 from the front, that is in the direction of the axis of rotation M.
  • the fan blades 2 have a radial extent or height H.
  • the stabilizers 5 are arranged, which are slightly concave, that is curved in the radial direction outwards.
  • the stabilizers 5 are demolded. This is particularly advantageous if the fan is injection molded as a plastic part or produced as a casting.
  • the dashed lines 16 show the course of the hub ramp on the back (pressure side) of the blade. 2
  • FIG. 4 shows the fan 1 in a view from the rear, that is to say in the direction of the rotation axis M.
  • the hub ramp is schematically indicated by the line 16 in the hub or blade root area.
  • the reference numeral 5 ' denotes the part of the stabilizers 5 which projects beyond the trailing edge 8 of the fan blades 2.
  • Fig. 5 shows an axial section through the fan 1 along the line VV in Fig. 4.
  • the fan blade 2, which is injected as a plastic part, has in its left, that is suction-side region of the approximately right-angled stabilizer 5, the fan blade 2 is injected. Again, the axial releasability of the stabilizers 5 is clear.
  • the reference numeral 16 indicates the upper edge of the hub ramp.
  • Fig. 6 shows a section along the line VI-VI in Fig. 4 with a view towards the suction side 9 of the blade 2. Again, the axial removability is clear for the cut portion 5 'of the stabilizer 5.
  • Fig. 7 shows an enlarged view, that is, a partial view of FIG. 1 for the blade root area.
  • the surfaces of the stabilizers 5, the radial vane elements or flow divider 6 and the hub ramp 16 can clearly be seen here again.
  • the surface elements 5 and 6 are interrupted in this embodiment by the front edge 7 of the vane 2.
  • Fig. 8 shows a further embodiment in which the outer surfaces 5a and 6a of the stabilizers 5 and the radial vane elements 6 are integrated with each other in such a way that they form a common, seamless surface with a common leading edge 17.
  • the surface element 6a thus passes on the one hand on the suction side of the blade 2 in the surface element 5a and on the other hand on the pressure side of the blade in the surface element 16 of the hub ramp.
  • a low-loss flow around the blade root that is achieved in the hub region, wherein the substantially radially oriented cooling air flow of the fluid friction clutch is combined with the control blade flow controlled.
  • the performance of this fan, especially in connection with the clutch can be improved.

Claims (12)

  1. Ventilateur à pales axiales, en particulier pour des radiateurs de véhicules automobiles, où les pales axiales (2) sont fixées sur un moyeu de ventilateur (3), caractérisé en ce que des éléments de guidage de l'air sont disposés dans la zone du moyeu et, essentiellement, sur le côté aspiration (9) des pales axiales (2), où les éléments de guidage de l'air sont configurés comme des stabilisateurs (5, 5a), en forme d'ailerons, dont l'étendue s, dans la direction circonférentielle, est dans la plage de 0,01 t ≤ s ≤ 0,40 t, où t est la distance comprise entre le bord d'attaque d'une pale axiale et le bord d'attaque d'une pale axiale voisine.
  2. Ventilateur selon la revendication 1, caractérisé en ce que l'étendue s, vue dans la direction axiale ou dans la direction d'écoulement de l'air, augmente.
  3. Ventilateur selon la revendication 2, caractérisé en ce que l'étendue s dans la zone (13), côté soufflage de l'air, est comprise entre 0,01 t et 0,05 t et, dans la zone (14), côté évacuation de l'air, va jusqu'à 0,40 t.
  4. Ventilateur selon la revendication 1 ou 2 ou 3, caractérisé en ce que la longueur 1 des stabilisateurs (5) correspond à peu près à la longueur L des pales axiales (2).
  5. Ventilateur selon la revendication 4, caractérisé en ce que le bord d'attaque (13) des stabilisateurs (5) est décalé, dans la direction d'écoulement de l'air, par rapport au bord d'attaque (7) des pales (2).
  6. Ventilateur selon la revendication 4, caractérisé en ce que le bord de fuite (14) des stabilisateurs (5) se termine par le bord de fuite (8) des pales (2).
  7. Ventilateur selon l'une quelconque des revendications précédentes 1 à 6, caractérisé en ce que les stabilisateurs (5, 5a) sont disposés dans une zone radiale r de 0 ≤ r ≤ 0,40 H, où H est l'étendue radiale (hauteur) des pales (2).
  8. Ventilateur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un embrayage à frottement visqueux (4), comprenant des ailettes de refroidissement (4') s'étendant dans le sens radial, est disposé à l'intérieur du moyeu (3).
  9. Ventilateur selon la revendication 8, caractérisé en ce qu'un élément radial (6) de la pale est associé à chaque stabilisateur (5), lequel élément radial est disposé, dans la direction de rotation A du ventilateur (1), derrière le stabilisateur (5) et, dans la direction radiale, à l'intérieur du stabilisateur (5).
  10. Ventilateur selon la revendication 9, caractérisé en ce que la surface extérieure de l'élément radial (6) de la pale passe, dans la rampe de moyeu (16), sur l'intrados (10) de la pale (2).
  11. Ventilateur selon la revendication 9 ou 10, caractérisé en ce que les surfaces (5a, 6a) du stabilisateur (5) et de l'élément radial (6) de la pale s'interpénètrent et présentent un bord d'attaque continu (17).
  12. Ventilateur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est prévu, sur l'intrados des pales axiales, une rampe de moyeu ascendante dans le sens inverse de la direction de rotation, rampe de moyeu en amont de laquelle sont disposés les éléments de guidage de l'air, vus dans la direction d'écoulement de l'air.
EP01125014A 2001-01-02 2001-10-20 Ventilateur à pales axiales Expired - Lifetime EP1219837B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001100064 DE10100064A1 (de) 1999-06-30 2001-01-02 Lüfter mit Axialschaufeln
DE10100064 2001-01-02

Publications (3)

Publication Number Publication Date
EP1219837A2 EP1219837A2 (fr) 2002-07-03
EP1219837A3 EP1219837A3 (fr) 2003-08-13
EP1219837B1 true EP1219837B1 (fr) 2006-08-09

Family

ID=7669690

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01125014A Expired - Lifetime EP1219837B1 (fr) 2001-01-02 2001-10-20 Ventilateur à pales axiales

Country Status (5)

Country Link
US (1) US6726454B2 (fr)
EP (1) EP1219837B1 (fr)
AT (1) ATE335931T1 (fr)
DE (1) DE50110684D1 (fr)
ES (1) ES2269274T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010042325A1 (de) 2010-10-12 2012-04-12 Behr Gmbh & Co. Kg Lüfter mit Lüfterschaufeln
DE102020207914A1 (de) 2020-06-25 2021-12-30 Ziehl-Abegg Se Ventilator sowie Flügel und Flügelrad für einen Ventilator

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10347802B3 (de) 2003-10-10 2005-05-19 Repower Systems Ag Rotorblatt für eine Windkraftanlage
CN100389267C (zh) * 2004-07-06 2008-05-21 鸿富锦精密工业（深圳）有限公司 风扇扇叶结构
US20090285691A1 (en) * 2005-12-05 2009-11-19 Peter Grabau Blade for a Wind Turbine Rotor
FR2896830B1 (fr) 2006-01-27 2010-09-17 Faurecia Cooling Systems Ventilateur pour vehicule automobile et bloc avant associe.
CN101657619B (zh) * 2007-05-10 2012-06-13 博格华纳公司 用于冷却风扇的增效的叶片和轮毂结构
DE102009055609A1 (de) * 2009-11-25 2011-05-26 Behr Gmbh & Co. Kg Lüfter für eine Brennkraftmaschine
DE102010062301A1 (de) * 2010-12-01 2012-06-06 Behr Gmbh & Co. Kg Axiallüfter
WO2013060358A1 (fr) * 2011-10-25 2013-05-02 Ebm-Papst Mulfingen Gmbh & Co. Kg Roue de ventilateur axial
DK2815125T3 (en) * 2012-02-17 2018-07-30 Lm Wind Power Int Tech Ii Aps WIND TURBINE BLADE HAVING A SHAPED STALL FENCE OR FLOW DIVERTER
JP5574020B2 (ja) * 2013-06-03 2014-08-20 ダイキン工業株式会社 軸流ファン
DE102013222116A1 (de) * 2013-10-30 2015-04-30 MAHLE Behr GmbH & Co. KG Lüfterkupplung
ITTO20140004U1 (it) * 2014-01-10 2015-07-10 Johnson Electric Asti S R L Ventola per un elettroventilatore di raffreddamento, particolarmente per uno scambiatore di calore per un autoveicolo
DE102014204043A1 (de) 2014-03-05 2015-09-10 MAHLE Behr GmbH & Co. KG Lüfterrad eines Axiallüfters
JP6753865B2 (ja) 2015-04-08 2020-09-09 ホートン， インコーポレイテッド ファンブレード表面の造作
JP2018017167A (ja) * 2016-07-27 2018-02-01 日本電産株式会社 インペラおよびモータ
US10935040B2 (en) * 2017-06-19 2021-03-02 The Boeing Company Radial blade impeller for an industrial fan assembly
USD860427S1 (en) 2017-09-18 2019-09-17 Horton, Inc. Ring fan
JP6583397B2 (ja) * 2017-12-05 2019-10-02 株式会社富士通ゼネラル プロペラファン
US11767761B2 (en) 2018-08-02 2023-09-26 Horton, Inc. Low solidity vehicle cooling fan
US11374458B2 (en) 2018-10-24 2022-06-28 Dekalb Blower Inc. Electric motor with fluid cooling
CN110005638B (zh) * 2019-04-30 2024-01-12 苏州睿昕汽车配件有限公司 一体式导流轮毂结构风扇
CN110107530B (zh) * 2019-06-19 2023-12-29 苏州睿昕汽车配件有限公司 多段式导流轮毂结构风扇
TWI707088B (zh) * 2019-08-13 2020-10-11 大陸商昆山廣興電子有限公司 扇輪
CN111927825B (zh) * 2020-07-24 2022-06-28 东风马勒热系统有限公司 开口风扇

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DE62510C (de) * G. schiele & CO. in Bockenheim bei Frankfurt a. Main Flügelrad-Gebläse mit Hülfsflügel
JPS5911106B2 (ja) 1975-04-04 1984-03-13 株式会社リコー オ−トバイアス現像方法
JPS5377321A (en) 1976-12-20 1978-07-08 Toyota Central Res & Dev Lab Inc Axial-flow fan with supplementary blade
DE2951775A1 (de) * 1978-12-26 1980-07-03 Nissan Motor Kuehlgeblaese
DE4117342C1 (fr) 1991-05-27 1992-09-10 Behr Gmbh & Co, 7000 Stuttgart, De
DE19525699A1 (de) 1995-07-14 1997-01-16 Bmw Rolls Royce Gmbh Tandem-Schaufelgitter
DE19710608B4 (de) * 1997-03-14 2007-10-31 Behr Gmbh & Co. Kg Axiallüfter für den Kühler eines Verbrennungsmotors
DE19929978B4 (de) * 1999-06-30 2006-02-09 Behr Gmbh & Co. Kg Lüfter mit Axialschaufeln
US6375427B1 (en) * 2000-04-14 2002-04-23 Borgwarner Inc. Engine cooling fan having supporting vanes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010042325A1 (de) 2010-10-12 2012-04-12 Behr Gmbh & Co. Kg Lüfter mit Lüfterschaufeln
WO2012049220A1 (fr) 2010-10-12 2012-04-19 Behr Gmbh & Co. Kg Ventilateur à pales
US9447791B2 (en) 2010-10-12 2016-09-20 Mahle International Gmbh Fan comprising fan blades
DE102020207914A1 (de) 2020-06-25 2021-12-30 Ziehl-Abegg Se Ventilator sowie Flügel und Flügelrad für einen Ventilator
WO2021259429A1 (fr) 2020-06-25 2021-12-30 Ziehl-Abegg Se Ventilateur et pale et hélice pour ventilateur

Also Published As

Publication number Publication date
US6726454B2 (en) 2004-04-27
EP1219837A3 (fr) 2003-08-13
ATE335931T1 (de) 2006-09-15
EP1219837A2 (fr) 2002-07-03
DE50110684D1 (de) 2006-09-21
ES2269274T3 (es) 2007-04-01
US20020085912A1 (en) 2002-07-04

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